Add Yahoo as a preferred source to see more of our stories on Google. More than 100 years ago, Americans were becoming deficient in the mineral iodine. It was causing problems like swelling in the ...

One of the earliest symptoms of iodine deficiency is goiter, which is the abnormal enlargement of your thyroid. You may be at a greater risk of iodine deficiency if you are pregnant, vegan, or avoid ...

When you think of iodine—the chemical element that helps your body produce thyroid hormones and regulate energy—you probably associate it with table salt. That’s because back in the 1920s, researchers ...

In the developed world, iodine deficiency has increased more than fourfold over the past 40 years. Nearly 74 percent of normal, “healthy” adults may no longer consume enough iodine. Coupled with the ...

Why it's essential and how much you need ...

The 13-year-old boy came to the clinic with a rapidly ballooning neck. Doctors were puzzled.Testing ruled out their first suspicion. But further tests pinpointed what they — and the boy — had been ...

Even a mild level of iodine deficiency during pregnancy is associated with adverse effects on the resulting child's cognitive development, according to a study of 1040 mothers and their offspring in ...